Oblique photography measurement prediction rolling rock motion trail simulation system and prediction method thereof

Abstract

The invention discloses an oblique photography measurement prediction rolling rock motion trail simulation system and a prediction method thereof. The method comprises the steps of installing a five-splicing camera system on an unmanned aerial vehicle flight platform, conducing low altitude oblique photography measurement on a slope rolling rock area to obtain oblique image data, preprocessing the image, adopting 3D modeling software to conduct live-action three-dimensional modeling, according to rolling rock trail experiments which are previously conducted, data of numerical value simulation and a matched result, establishing an engineering database of a geotechnical engineering expert system, through database matching and comprehensive inference mechanism analysis, obtaining main relevant parameters which influence a slope rolling rock motion trail and energy conversion, by using CoFrac rolling rock analysis software, and based on the obtained data and an energy tracking method, conducting numerical value simulation on the slop rolling rock motion trail, and analyzing energy loss and a potential motion trail of a rock belt in the rolling process of a rolling rock, so that a scientific basis is provided for governing the rolling rock.

Description

technical field [0001] The invention belongs to the technical field of collapse and rockfall prevention and control engineering, and in particular relates to a simulation system and a prediction method for predicting the trajectory of rolling rocks by tilting photogrammetry. Background technique [0002] Among the many engineering geological disasters, rolling stone disasters rank third after landslides and mudslides. Rolling stone refers to the dynamic process in which the rocks in the provenance area start from rest due to certain disturbances, reach the bottom of the slope through sliding, collision, bouncing, rolling and other motion methods, and finally come to rest in a gentle area. When there are human activities or human-built facilities within the movement range of rolling stones and cause certain losses, it will cause rolling stone disasters. For example, in the early morning of August 5, 2016, a landslide occurred in Zhuanghutai Village, Xiayunling Township, Fang...

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Problems solved by technology

[0004] Aiming at the problem that it is difficult to collect the movement parameters of rolling stones in the field, the present invention provides a simulation system and prediction method for predicting the trajectory of rolling stones using oblique photogrammetry. In this way, the trajectory and distance of the rolling stone can be estimated, so that a reasonable avoidance method can be formulated or an appropriate rolling stone impact protection structure can be established.

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